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Anatomy of Flowering Plants

17 NEET questions on Anatomy of Flowering Plants. A sample is shown below with full explanations; the rest are available free after signing up.

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Anatomy of Flowering Plants2025medium

Q1.Find the statement that is NOT correct with regard to the structure of monocot stem.

  • AHypodermis is parenchymatous.Answer
  • BVascular bundles are scattered.
  • CVascular bundles are conjoint and closed.
  • DPhloem parenchyma is absent.

Explanation

The monocot stem does have scattered vascular bundles that are conjoint, collateral and closed, meaning no cambium and therefore no secondary growth, and its phloem lacks phloem parenchyma. The incorrect statement is the first: in a monocot stem the hypodermis is sclerenchymatous, whereas it is the dicot stem that has a collenchymatous hypodermis.

Source: NEET 2025 (4 May), Code 45, Q118

Anatomy of Flowering Plants2024medium

Q2.Bulliform cells are responsible for

  • AProtecting the plant from salt stress.
  • BIncreased photosynthesis in monocots.
  • CProviding large spaces for storage of sugars.
  • DInward curling of leaves in monocots.Answer

Explanation

Bulliform cells are large, empty, thin walled cells in the upper epidermis of grass leaves. When they are full of water the leaf surface is exposed, but when they lose water under drought they become flaccid and the leaf curls inward. That curling reduces the exposed surface and so limits transpiration — a water conservation mechanism rather than a photosynthetic or storage one.

Source: NEET 2024 (5 May), Code R3, Q111

Anatomy of Flowering Plants2024medium

Q3.Given below are two statements. In the light of the above statements, choose the correct answer from the options given below.

  • Statement I: Parenchyma is living but collenchyma is dead tissue.
  • Statement II: Gymnosperms lack xylem vessels but the presence of xylem vessels is a characteristic of angiosperms.
  • ABoth Statement I and Statement II are false
  • BStatement I is true but Statement II is false
  • CStatement I is false but Statement II is trueAnswer
  • DBoth Statement I and Statement II are true

Explanation

Statement I is false — both parenchyma and collenchyma are living simple tissues; it is sclerenchyma that is dead at maturity. Statement II is true: gymnosperm xylem contains tracheids but no vessels, and the presence of vessels is one of the defining advances of angiosperm wood.

Source: NEET 2024 (5 May), Code R3, Q135

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